aurora
Sonata
Hand Held ISDN Tester—User Guide
4-36 427869
Understanding the test results
During the test, aurora
Sonata
displays the error count (see
Performing BERT using a connected call earlier in this
section). If the call fails during the test, the test stops and
aurora
Sonata
displays the Cause Code. When the test is complete,
aurora
Sonata
displays the final results.
BERT on the D channel
To test a Basic Rate fixed link you have the option to perform
BERT on the D channel as well as the standard B channel test.
Notes:
• Do not attempt to perform D channel BERT on a live
signalling line, as this could damage the operation of the
switch and put the line out of service.
• For fixed link testing you must set L2 protocol in the
Emulation Setup menu to No D Chan. See Setting the
emulation mode in Chapter 3 section 1.
-1-
Select the D channel as normal. (See Selecting a
channel for testing in Chapter 3 section 2.) A D
Channel BERT option appears on the main
Simulate menu.
Note
You cannot access the ISDN Test Suite from this menu.
-2-
Select D Channel BERT.
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